Load Specifications
Load data in caliber 7 x 72 R with .284 | 136gr | Peregrine VLR-5 bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and SNPE Vectan Tubal 5000.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 34,490 psi | 85% | 2461 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 34,737 psi | 86% | 2487 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 82% | 35,650 psi | 88% | 2497 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 34,795 psi | 86% | 2480 fps | 95.8% |
| Bofors RP3 | <<locked>> | 90% | 36,550 psi | 90% | 2533 fps | 96.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,201 psi | 87% | 2493 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 36,245 psi | 89% | 2539 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,924 psi | 84% | 1654 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 36,463 psi | 90% | 2539 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 84% | 35,389 psi | 87% | 2490 fps | 98.1% |
| Lovex S062 | <<locked>> | 86% | 35,070 psi | 86% | 2451 fps | 96.3% |
| Norma 201 | <<locked>> | 82% | 34,519 psi | 85% | 2425 fps | 96.1% |
| Norma 202 | <<locked>> | 82% | 34,563 psi | 85% | 2444 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,794 psi | 83% | 1690 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,070 psi | 86% | 2556 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 84% | 34,867 psi | 86% | 2425 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 92% | 36,448 psi | 90% | 2523 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 35,389 psi | 87% | 2490 fps | 98.1% |
| Shooters World Precision | <<locked>> | 86% | 35,070 psi | 86% | 2451 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 36,637 psi | 90% | 2405 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 36,114 psi | 89% | 2411 fps | 99.4% |
| Somchem S335 | <<locked>> | 82% | 35,897 psi | 88% | 2408 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,838 psi | 86% | 2549 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 82% | 36,680 psi | 90% | 2415 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 86% | 35,868 psi | 88% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 34,838 psi | 86% | 2431 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 92% | 36,216 psi | 89% | 2477 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 86% | 35,810 psi | 88% | 2467 fps | 98.6% |
| Winchester 748 | <<locked>> | 82% | 35,911 psi | 88% | 2513 fps | 97.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 28,152 psi | 69% | 2316 fps | 99.1% |
| Accurate 4064 | 32.4 gr | 80% | 26,687 psi | 66% | 2290 fps | 96.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,286 psi | 82% | 2451 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 32,619 psi | 80% | 2428 fps | 95% |
| Bofors RP3 | <<locked>> | 88% | 33,939 psi | 84% | 2474 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,764 psi | 81% | 2438 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 33,852 psi | 83% | 2484 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,034 psi | 62% | 1476 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 31,865 psi | 78% | 2434 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 30,748 psi | 76% | 2385 fps | 96.7% |
| Lovex S062 | <<locked>> | 84% | 32,909 psi | 81% | 2402 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 32,372 psi | 80% | 2372 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 32,416 psi | 80% | 2395 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,048 psi | 62% | 1509 fps | 100% |
| ReloadSwiss RS 60 | 37.3 gr | 86% | 30,589 psi | 75% | 2434 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 82% | 32,692 psi | 81% | 2372 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 34,113 psi | 84% | 2470 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,748 psi | 76% | 2385 fps | 96.7% |
| Shooters World Precision | <<locked>> | 84% | 32,909 psi | 81% | 2402 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,360 psi | 85% | 2359 fps | 98.3% |
| SNPE Vectan Tubal 5000 | 31.3 gr | 80% | 27,789 psi | 68% | 2221 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 33,721 psi | 83% | 2362 fps | 98.8% |
| Somchem S365 | <<locked>> | 98% | 32,721 psi | 81% | 2497 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 34,374 psi | 85% | 2369 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,283 psi | 72% | 2329 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 30,632 psi | 75% | 2336 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 88% | 31,575 psi | 78% | 2372 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 29,182 psi | 72% | 2313 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 33,692 psi | 83% | 2461 fps | 96.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 60 powders for 7 x 72 R loaded with the .284 | 136gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,562 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,562 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 83–90 %, leaving at least 10 % headroom. The 136.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, ReloadSwiss RS 14 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 60, Accurate 4064, SNPE Vectan Tubal 5000 rank at the top here: for 7 x 72 R with the .284 | 136gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, ADI AR 2206H, ADI AR 2208 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.